The watch ______ unnoticed for several days before I found it.
A. had laid B. had lain C. had been laying D. had been laid
After the school sports, our headmaster ______ the prizes.
A. gave away B. gave in C. gave off D. gave up
________ to sunlight for too much time will do harm to one’s skin.
A. Exposed B. Having exposed
C. Being exposed D. After being exposed
I’m very happy _________ a chance to visit your country.
A. to have given B. to give C. giving D. to be given
Zhongguancun made __________ for him to realize his dream.
A. that possible B. it a possible C. that a possible D. it possible
__________ the plan many times, but he still didn’t understand.
A. Having told him B. Having been told him
C. Though he had been told D. He was told
